/*
** Copyright (C) 2015-2017 Alexander Borisov
**
** This file is a part of PurC (short for Purring Cat), an HVML parser
** and interpreter.
** 
** This program is free software: you can redistribute it and/or modify
** it under the terms of the GNU Lesser General Public License as published by
** the Free Software Foundation, either version 3 of the License, or
** (at your option) any later version.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
** GNU Lesser General Public License for more details.
**
** You should have received a copy of the GNU Lesser General Public License
** along with this program.  If not, see <https://www.gnu.org/licenses/>.
**
** Author: lex.borisov@gmail.com (Alexander Borisov)
*/

#ifndef MyCORE_INCOMING_H
#define MyCORE_INCOMING_H
#pragma once

#ifdef __cplusplus
extern "C" {
#endif

#include <mycore/myosi.h>
#include <mycore/utils/mcobject.h>

struct mycore_incoming_buffer {
    const char* data;
    size_t length;      // use of data
    size_t size;        // size of data
    size_t offset;      // begin global offset
    
    struct mycore_incoming_buffer* prev;
    struct mycore_incoming_buffer* next;
};

mycore_incoming_buffer_t * mycore_incoming_buffer_add(mycore_incoming_buffer_t *current, mcobject_t *mcobject, const char *html, size_t html_size);
void mycore_incoming_buffer_clean(mycore_incoming_buffer_t *current);
mycore_incoming_buffer_t * mycore_incoming_buffer_split(mycore_incoming_buffer_t *current, mcobject_t *mcobject, size_t global_pos);

mycore_incoming_buffer_t * mycore_incoming_buffer_find_by_position(mycore_incoming_buffer_t *inc_buf, size_t begin);

const char * mycore_incoming_buffer_data(mycore_incoming_buffer_t *inc_buf);
size_t mycore_incoming_buffer_length(mycore_incoming_buffer_t *inc_buf);
size_t mycore_incoming_buffer_size(mycore_incoming_buffer_t *inc_buf);
size_t mycore_incoming_buffer_offset(mycore_incoming_buffer_t *inc_buf);
size_t mycore_incoming_buffer_relative_begin(mycore_incoming_buffer_t *inc_buf, size_t begin);
size_t mycore_incoming_buffer_available_length(mycore_incoming_buffer_t *inc_buf, size_t relative_begin, size_t length);

mycore_incoming_buffer_t * mycore_incoming_buffer_next(mycore_incoming_buffer_t *inc_buf);
mycore_incoming_buffer_t * mycore_incoming_buffer_prev(mycore_incoming_buffer_t *inc_buf);

size_t mycore_incoming_buffer_convert_one_escaped_to_code_point(mycore_incoming_buffer_t **inc_buf, size_t *relative_pos);
size_t mycore_incoming_buffer_escaped_case_cmp(mycore_incoming_buffer_t **inc_buf, const char *to, size_t to_size, size_t *relative_pos);

#ifdef __cplusplus
} /* extern "C" */
#endif

#endif /* MyCORE_INCOMING_H */
